From b1280007e756a25a7b70d826b0885018b146f8fc Mon Sep 17 00:00:00 2001
From: Andrew Lytvynov <andrew@gravitational.com>
Date: Fri, 26 Jun 2020 14:57:33 -0700
Subject: [PATCH] Return a better error on session recording lookup

Instead of `0 not found`, return an error earlier, when loading index
files.
---
 lib/events/auditlog.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/events/auditlog.go b/lib/events/auditlog.go
index c2715925ba4f2..7558bb8d58b68 100644
--- a/lib/events/auditlog.go
+++ b/lib/events/auditlog.go
@@ -560,6 +560,11 @@ func readSessionIndex(dataDir string, authServers []string, namespace string, si
 			return nil, trace.Wrap(err)
 		}
 	}
+
+	if len(index.indexFiles) == 0 {
+		return nil, trace.NotFound("session %q not found", sid)
+	}
+
 	index.sort()
 	return &index, nil
 }